int isclean(char *file)
{
if (isregular(file) == 0) /* prove this first !!! */
return 0;
if (isinfected(file) == 1)
return 0;
if (iself(file) == 0)
return 0;
return 1;
}
void solve ()
{
int i , j;
N = strlen ( data );
memset ( Left , 0 , sizeof ( Left ));
for ( i = 0; i < N; i ++ ) if ( data [i] == ')' || data [i] == ']' ) {
for ( j = i - 1; j >= 0 && Left [j] != 0; j -= Left [j] );
if ( j >= 0 && isregular ( data [j] , data [i] )) {
for ( ; j && Left [j - 1]; j -= Left [j - 1] );
Left [i] = i - j + 1;
}
}
for ( i = j = 0; i < N; i ++ ) if ( Left [i] > Left [j] ) j = i;
for ( i = j - Left [j] + 1; i <= j; i ++ ) printf ( "%c" , data [i] );
printf ( "\n\n" );
}
static fz_error parsename(fz_obj **obj, char **sp)
{
fz_error error;
char buf[64];
char *s = *sp;
char *p = buf;
s ++; /* skip '/' */
while (p < buf + sizeof buf - 1 && isregular(*s))
*p++ = *s++;
*p++ = 0;
*sp = s;
error = fz_newname(obj, buf);
if (error)
return fz_rethrow(error, "cannot create name");
return fz_okay;
}
int main(int argc, char *argv[]){
//check for correct args
if(argc < 2){
printerror("Error to few arguments: ");
exit(EXIT_FAILURE);
}
int controlfd = makeconnection(argv[1], PORT_NUMBER);
char *command = (char*)calloc(MAX_COMMAND_SIZE, sizeof(char));
char *tokenize = (char*)calloc(MAX_COMMAND_SIZE, sizeof(char));
char *token = (char*)calloc(MAX_COMMAND_SIZE, sizeof(char));
char *delims = " \n\t";
while(1){
printf("mftp>");
fgets(command, sizeof(char) * MAX_COMMAND_SIZE, stdin);
if(!hasargs(command)){
continue;
}
memcpy(tokenize, command, sizeof(char) * MAX_COMMAND_SIZE);
token = strtok(tokenize, delims);
if(!strcmp(token, "ls")){
ls();
}else if(!strcmp(token, "rls")){
int portnum;
int rlssocket;
if((portnum = getportnum(controlfd)) < 0){
printerror("rls not executed due to error");
continue;
}
if((rlssocket = makeconnection(argv[1], portnum)) < 0){
printerror("rls not executed due to error");
continue;
}
rls(rlssocket, controlfd);
close(rlssocket);
}else if(!strcmp(token, "cd")){
token = strtok(NULL, delims);
cd(token);
}else if(!strcmp(token, "rcd")){
token = strtok(NULL, delims);
rcd(token, controlfd);
}else if(!strcmp(token, "get")){
int portnum;
int getsocket;
int filefd;
token = strtok(NULL, delims);
if(token == NULL){
printerror("Error expected parameter to get");
continue;
}
char *filenamedelims = "/";
char *filename = strtok(token, filenamedelims);
char *lastname = filename;
while((filename = strtok(NULL, filenamedelims)) != NULL){
lastname = filename;
}
if((filefd = open(lastname, O_CREAT | O_APPEND | O_EXCL | O_WRONLY, S_IRUSR
| S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)) < 0){
perror("Error opening file");
continue;
}
if((portnum = getportnum(controlfd)) < 0){
printerror("get not executed due to error");
continue;
}
if((getsocket = makeconnection(argv[1], portnum)) < 0){
printerror("get not executed due to error");
continue;
}
get(token, filefd, getsocket, controlfd);
close(filefd);
close(getsocket);
}else if(!strcmp(token, "show")){
int portnum;
int showsocket;
token = strtok(NULL, delims);
if(token == NULL){
printerror("Error expected parameter to show");
continue;
}
if((portnum = getportnum(controlfd)) < 0){
printerror("show not executed due to error");
continue;
}
if((showsocket = makeconnection(argv[1], portnum)) < 0){
printerror("show not executed due to error");
continue;
}
show(token, showsocket, controlfd);
close(showsocket);
}else if(!strcmp(token, "put")){
int portnum;
int putsocket;
int filefd;
token = strtok(NULL, delims);
if(token == NULL){
printerror("Error expected parameter to put");
continue;
}
char *filenamedelims = "/";
char *filename = strtok(token, filenamedelims);
char *lastname = filename;
while((filename = strtok(NULL, filenamedelims)) != NULL){
lastname = filename;
}
if((filefd = open(token, O_RDONLY)) < 0){
perror("Error opening file");
continue;
}
if(isregular(token)){
if((portnum = getportnum(controlfd)) < 0){
printerror("put not executed due to error");
continue;
}
if((putsocket = makeconnection(argv[1], portnum)) < 0){
printerror("put not executed due to error");
continue;
}
put(lastname, filefd, putsocket, controlfd);
close(filefd);
close(putsocket);
}else{
close(filefd);
printerror("File not regular put not executed");
}
}else if(!strcmp(token, "exit")){
char *quit = "Q\n";
char buf[100];
write(controlfd, quit, sizeof(char) * 2);
read(controlfd, buf, 100);
close(controlfd);
exit(EXIT_SUCCESS);
}else{
printerror("Unknown command ignored");
}
}
}
int
pdf_lex(fz_stream *f, unsigned char *buf, int n, int *sl)
{
int c;
while (1)
{
c = fz_peekbyte(f);
if (c == EOF)
return PDF_TEOF;
else if (iswhite(c))
lexwhite(f);
else if (c == '%')
lexcomment(f);
else if (c == '/')
{
fz_readbyte(f);
lexname(f, buf, n);
*sl = strlen(buf);
return PDF_TNAME;
}
else if (c == '(')
{
fz_readbyte(f);
*sl = lexstring(f, buf, n);
return PDF_TSTRING;
}
else if (c == '<')
{
fz_readbyte(f);
c = fz_peekbyte(f);
if (c == '<')
{
fz_readbyte(f);
return PDF_TODICT;
}
else
{
*sl = lexhexstring(f, buf, n);
return PDF_TSTRING;
}
}
else if (c == '>')
{
fz_readbyte(f);
c = fz_readbyte(f);
if (c == '>')
return PDF_TCDICT;
return PDF_TERROR;
}
else if (c == '[')
{
fz_readbyte(f);
return PDF_TOARRAY;
}
else if (c == ']')
{
fz_readbyte(f);
return PDF_TCARRAY;
}
else if (c == '{')
{
fz_readbyte(f);
return PDF_TOBRACE;
}
else if (c == '}')
{
fz_readbyte(f);
return PDF_TCBRACE;
}
else if (isnumber(c))
{
lexnumber(f, buf, n);
*sl = strlen(buf);
if (strchr(buf, '.'))
return PDF_TREAL;
return PDF_TINT;
}
else if (isregular(c))
{
lexname(f, buf, n);
*sl = strlen(buf);
return tokenfromkeyword(buf);
}
else
return PDF_TERROR;
}
}
fz_error
pdf_lex(pdf_token_e *tok, fz_stream *f, char *buf, int n, int *sl)
{
fz_error error;
int c;
while (1)
{
c = fz_peekbyte(f);
if (c == EOF)
{
*tok = PDF_TEOF;
goto cleanupokay;
}
else if (iswhite(c))
lexwhite(f);
else if (c == '%')
lexcomment(f);
else if (c == '/')
{
fz_readbyte(f);
lexname(f, buf, n);
*sl = strlen(buf);
*tok = PDF_TNAME;
goto cleanupokay;
}
else if (c == '(')
{
fz_readbyte(f);
*sl = lexstring(f, buf, n);
*tok = PDF_TSTRING;
goto cleanupokay;
}
else if (c == '<')
{
fz_readbyte(f);
c = fz_peekbyte(f);
if (c == '<')
{
fz_readbyte(f);
*tok = PDF_TODICT;
goto cleanupokay;
}
else
{
*sl = lexhexstring(f, buf, n);
*tok = PDF_TSTRING;
goto cleanupokay;
}
}
else if (c == '>')
{
fz_readbyte(f);
c = fz_readbyte(f);
if (c == '>')
{
*tok = PDF_TCDICT;
goto cleanupokay;
}
*tok = PDF_TERROR;
goto cleanuperror;
}
else if (c == '[')
{
fz_readbyte(f);
*tok = PDF_TOARRAY;
goto cleanupokay;
}
else if (c == ']')
{
fz_readbyte(f);
*tok = PDF_TCARRAY;
goto cleanupokay;
}
else if (c == '{')
{
fz_readbyte(f);
*tok = PDF_TOBRACE;
goto cleanupokay;
}
else if (c == '}')
{
fz_readbyte(f);
*tok = PDF_TCBRACE;
goto cleanupokay;
}
else if (isnumber(c))
{
lexnumber(f, buf, n);
*sl = strlen(buf);
if (strchr(buf, '.'))
{
*tok = PDF_TREAL;
goto cleanupokay;
}
*tok = PDF_TINT;
goto cleanupokay;
}
else if (isregular(c))
{
lexname(f, buf, n);
*sl = strlen(buf);
*tok = pdf_tokenfromkeyword(buf);
goto cleanupokay;
}
else
{
*tok = PDF_TERROR;
goto cleanuperror;
}
}
cleanupokay:
error = fz_readerror(f);
if (error)
{
*tok = PDF_TERROR;
return fz_rethrow(error, "cannot read token");
}
return fz_okay;
cleanuperror:
error = fz_readerror(f);
if (error)
{
*tok = PDF_TERROR;
return fz_rethrow(error, "cannot read token");
}
*tok = PDF_TERROR;
return fz_throw("lexical error");
}